Attribute State and StateString

[diripu]

Hi
Am confused with this two attributes(State and StateString).
What is the relation between this attributes.

In some MBeans it showing State=3 and StateString=Started.

But According to JSR77 the SMO(StateManageable Object) state=3 means
stopped...


Thanks

[dimitris]

StateString is just a string-fied representation of the State attribute, just to display something meaningful.

I don't think the jboss state is the same as jsr77 defined state.

[diripu]

Where i would get the explanation and the corresponding number ?

[dimitris]

Just look inside the source:

public interface ServiceMBean
 extends Service
{
 // Constants -----------------------------------------------------

 /** The JMX notification event type for a service create state */
 public static final String CREATE_EVENT = " org.jboss.system.ServiceMBean.create";
 /** The JMX notification event type for a service create state */
 public static final String START_EVENT = " org.jboss.system.ServiceMBean.start";
 /** The JMX notification event type for a service create state */
 public static final String STOP_EVENT = " org.jboss.system.ServiceMBean.stop";
 /** The JMX notification event type for a service create state */
 public static final String DESTROY_EVENT = " org.jboss.system.ServiceMBean.destroy";

 public static final String[] states = {
 "Stopped", "Stopping", "Starting", "Started", "Failed",
 "Destroyed", "Created", "Unregistered", "Registered"
 };

 /** The Service.stop has completed */
 public static final int STOPPED = 0;
 /** The Service.stop has been invoked */
 public static final int STOPPING = 1;
 /** The Service.start has been invoked */
 public static final int STARTING = 2;
 /** The Service.start has completed */
 public static final int STARTED = 3;
 /** There has been an error during some operation */
 public static final int FAILED = 4;
 /** The Service.destroy has completed */
 public static final int DESTROYED = 5;
 /** The Service.create has completed */
 public static final int CREATED = 6;
 /** The MBean has been created but has not completed MBeanRegistration.postRegister */
 public static final int UNREGISTERED = 7;
 /** The MBean has been created and has completed MBeanRegistration.postRegister */
 public static final int REGISTERED = 8;

 // Public --------------------------------------------------------

 String getName();
 int getState();
 String getStateString();

 /** Detyped lifecycle invocation */
 void jbossInternalLifecycle(String method) throws Exception;
}

[diripu]

Thanks.

Conclusion:
So for ServiceMBean the number are different than the SMO.
Here the attribure is "State". (Capital "S")

For SMO( or j2ee.state.* events) ,the attribute is "state". (note small "s")
I think for this the order number is like the below from 0-4.

j2ee.state.starting
j2ee.state.running
j2ee.state.stoping
j2ee.state.stopped
j2ee.state.failed

For example: the value of "state" attribute of the following mbean is "1".
means j2ee.state.running..... And it is a SMO.

"J2EEApplication=none,J2EEServer=none,j2eeType=WebModule,name=//localhost/jmx-console"